2646961 has 4 divisors (see below), whose sum is σ = 2650624. Its totient is φ = 2643300.

The previous prime is 2646937. The next prime is 2646967. The reversal of 2646961 is 1696462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2646961 - 2¹¹ = 2644913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2646967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345 + ... + 2326.

It is an arithmetic number, because the mean of its divisors is an integer number (662656).

2^2646961 is an apocalyptic number.

It is an amenable number.

2646961 is a deficient number, since it is larger than the sum of its proper divisors (3663).

2646961 is an equidigital number, since it uses as much as digits as its factorization.

2646961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662.

The product of its digits is 15552, while the sum is 34.

The square root of 2646961 is about 1626.9483704162. The cubic root of 2646961 is about 138.3298313657.

It can be divided in two parts, 264 and 6961, that added together give a square (7225 = 85²).

The spelling of 2646961 in words is "two million, six hundred forty-six thousand, nine hundred sixty-one".